YELLOW-HEADED BLACKBIRD 121 



tral Illinois (Quiver Lake), and northwestern Indiana (Lake and 

 Porter Counties). There are summer records which may indicate 

 breeding in western Texas, central-eastern Missouri, southern Illinois, 

 Michigan, and central Ohio. 



Winter range. — Winters north to central California (Sacramento 

 Valley), central Arizona (Clarkdale), southern New Mexico (Socorro, 

 Carlsbad), central and southeastern Texas (Medina, Port Arthur), 

 and southern Louisiana (Calcasieu Parish, Octave Pass) ; south to 

 southern Baja California (San Jose del Cabo), Jalisco, Michoacan, 

 Guerrero, Puebla and central Veracruz. 



Casual records. — Casual in southwestern British Columbia and 

 central Mackenzie, and from northern Michigan, southern Ontario, 

 and western Pennsylvania south to southern Louisiana, and along 

 the Atlantic seaboard from Maine to northern Florida. 



Accidental in the Arctic Ocean (100 miles west of Point Hope, 

 Alaska), northern Manitoba (Churchill), central Quebec (Rupert 

 House, Godbout), Nova Scotia (Sable Island), southern Florida 

 (Royal Palm Hammock, Key West), Cuba (Havana — market speci- 

 men, Guantanamo) Barbados, and Greenland (Sarcllog, Nanortalik). 



Migration. — Early dates of spring arrival are: Arkansas — Rogers, 

 March 10. Kentucky — Meade County, April 19. Missouri — Chilli- 

 cot he, March 8 (median of 4 years, March 13) ; New Haven, March 11. 

 Illinois — Hinsdale, March 12; Paris, April 2; Chicago region, April 16 

 (average, May 3). Indiana — Goshen, April 17; Kokomo, April 19. 

 Ohio — Sandusky, April 15. Michigan — Schoolcraft County, April 9; 

 Monroe County, April 29. Ontario — Middlesex County, April 29. 

 Iowa — Sioux City, March 10 (median of 21 years, April 23). Wis- 

 consin — Madison, March 23 ; St. Croix County, April 5. Minnesota — 

 Hutchinson, March 20 (average of 19 years for southern Minnesota, 

 April 16); Fores ton, April 7 (average of 9 years for northern Minne- 

 sota, May 6). Texas— El Paso, March 7; Taylor County, March 26. 

 Oldahoma — Oklahoma City, February 27; Custer County, March 5. 

 Kansas — Bendena, February 18; Harper, March 2. Nebraska — 

 Hastings, February 24; Red Cloud, March 6 (average of 14 years, 

 April 12). South Dakota — Vermillion, April 1; Sioux Falls, April 2 

 (average of 7 years, April 30). North Dakota — Jamestown, April 14; 

 Cass County, April 21 (average, May 4). Manitoba — Margaret, 

 April 14; Treesbank, April 18 (median of 42 years, May 3). Macken- 

 zie — Fort Chipewyan, May 24. New Mexico — Rincon, February 16. 

 Arizona — Tucson, February 27; Phoenix, March 8. Colorado 

 Denver, February 15 (median of 23 years, April 23) ; Walden, March 30 

 (median of 11 years, April 14). Utah — Bear River Refuge, Brigham 

 City, March 30. Wyoming — Wheatland, April 10; Laramie, April 11 

 (average of 8 years, April 25). Idaho — Deer Flat, March 5; Rupert, 



